add Ignore DNS and IP test cases

fail2ban/tests/filtertestcase.py

@@ -266,6 +266,15 @@ class IgnoreIP(LogCaptureTestCase):
 		self.assertTrue(self.filter.inIgnoreIPList("10.0.0.1"))
 		self.assertFalse(self.filter.inIgnoreIPList("10.0.0.0"))
 
+	def testIgnoreCauseDNS(self):
+		self.filter.setUseDns("true")
+		self.filter.addIgnoreIP("example.com")
+		self.assertTrue(self._is_logged("Ignore 93.184.216.34"))
+
+	def testIgnoreCauseIP(self):
+		self.filter.addIgnoreIP("93.184.216.34")
+		self.assertTrue(self._is_logged("Ignore 93.184.216.34"))
+
 
 class IgnoreIPDNS(IgnoreIP):